JPH0885516A - Filling device for large sized bag - Google Patents

Abstract

PURPOSE: To automate all of the filling of a content with a heavy weight into a bag body, air-purging of the bag body, sealing and packing in a box body. CONSTITUTION: A pick-up device 21 takes out bag bodies one by one, and inserts the lower part of the bag body in a box body 8, and the bag body is carried together with the box body 8. After the bag mouth of the bag body is opened, a content is filled from a chuter 41, and an air-purging of the bag body and sealing of the bag mouth are performed in a chamber device 50.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for filling a large bag with a large amount of contents such as 20 to 40 kg.

[0002]

2. Description of the Related Art In the case of shipping processed food products such as tea leaves, black tea leaves, coffee powder or powdered seasonings, 20 kg, 3
A large weight such as 0 kg is filled in a bag body, and the bag body is packed in a box body such as a cardboard box. The packing of the contents of such a heavy object is carried out in the order of filling the bag with the contents, replacing the gas in the bag or evacuating the air, sealing the bag mouth of the bag, and accommodating the bag in the box. Be done. Conventionally, all of these operations have been performed manually by workers, and a device that automates filling of contents into large bags and packing into boxes is
Not yet developed.

[0003]

The operation of filling a large amount of contents requires a great amount of labor for the operator, and also the sealing after the filling and the packing in the box body require a large amount of weight. Requires labor to carry things. Therefore,
It is preferable to develop a device that can automate these operations from the viewpoint of labor saving and labor saving.

The present invention has been made in consideration of the above circumstances, and automatically fills a large bag with a large amount of contents, seals the bag, and stores the bag in a box. It is an object of the present invention to provide a filling device capable of

[0005]

A device for filling a large bag according to the present invention comprises a pick-out device for adsorbing and taking out the large bags stacked in a folded state one by one.
A hand device that rotates while inserting the bag mouth portion of the bag taken out by the pick-out device and inserts the lower part of the bag body into the box body, and a bag mouth portion of the bag body that is held by the hand device The opening device that approaches the bag mouth from both sides and opens the bag mouth by separating in this gripping state, the throwing device that puts a predetermined amount of content into the opened bag, and the contents are A chamber apparatus for accommodating the thrown bag body together with the box body in the closed space to evacuate the air in the closed space, and a sealing device provided inside the chamber apparatus for closing the bag mouth of the bag body. It is characterized by

In this apparatus, the opening of the bag mouth of the bag body, the introduction of the contents into the bag body, the venting of air from the bag body and the sealing are all performed mechanically. During these processes, the bag is transported together with the box. As a result, all the filling, sealing, and packing of a large bag can be automated, which contributes to labor saving.

[0007]

1 and 2 show the overall construction of an embodiment of the present invention. As shown in FIG. 1, this apparatus is configured such that a bag feeding unit 2 and a box feeding unit 3 are orthogonal to the upstream side of a conveying path 1 configured by arranging a large number of rollers. After that, the filling section 4 and the chamber section 5 are sequentially arranged along the transport path 1, and the discharge path 6 is located on the downstream side. The bag is filled with tea leaves, coffee powder, and other contents in a large weight of 20 to 30 kg, and is therefore large in size. The bag is made of a non-breathable packaging material by laminating an aluminum foil on a plastic sheet. As this bag body, a gusset bag having a pair of side surfaces facing each other and inward folding lines is used, and the bag mouth is opened and the other parts are set in the supply unit 2 in a sealed state. The box body is for packing the bag body in which the contents are filled and the bag mouth is sealed,
Cardboard boxes are used. The boxes are arranged in the box supply unit 3 in an assembled state with the upper surface opened.

FIG. 3 and FIG. 4 show the bag feeding unit 2 and the box feeding unit 3. The bag supply unit 2 is a folded bag 7
The table 20 is provided with a mounting table 20 on which the sheets are stacked and mounted, and a pickup device 21 arranged above the mounting table 20. The mounting table 20 is connected to a motor 22 and moves up and down by driving the motor 22. The bag body 7 is mounted on the mounting table 20 such that the bag mouth is located on the front side (right side in FIG. 5).

The pickup device 21 has a suction head 23 for suctioning the bag mouth portion of the bag body 7 by decompression, a slide member 24 to which the suction head 23 is attached and which moves the head 23 back and forth in the direction of the transport path 1, and this slide. Member 2
And a cylinder 25 for moving up and down 4. In this case, the slide member 24 includes a motor and a rack gear 26 connected to a rotating shaft of the motor via a pinion gear, and the suction head 23 is slid at a slow speed by being driven by the motor.

In the lower portion of the bag body supply section, the bag bodies 7 are stacked on the mounting table 20, and after the mounting table 20 is raised, the suction head 23 is lowered to lower the bag mouth of the uppermost bag body 7. Adsorb part. Then, the slide member 24 slides forward to pull out the bag body 7, and the leading end of the bag body 7 delivers it to the chuck hand 32 of the hand device 31 described later. In FIG. 4, 27 is a tip detection sensor such as an optical sensor that detects the tip of the bag body 7 that has been pulled out. The bag is handed over to the hand device 31 by the detection signal of the tip detection sensor 27.

As shown in FIG. 1, the box body supply section 3 is provided in parallel with the bag body supply section 2 described above. The boxes 8 are arranged in the supply unit 3 in an assembled state with the upper surface opened, and are sequentially sent out to the transport path 1 from the front end side. In order to carry out this feeding, a pushing plate 30 that advances and retracts in the direction of the transport path 1 is provided, and when the pushing plate 30 advances, the boxes 8 are fed to the front of the bag feeding unit 2 one by one.

FIG. 5 shows a starting end portion of the conveying path 1, and a hand device 31 is provided at this portion. The hand device 31 is provided with a chuck hand 32 that receives the bag body 7 from the suction head 23 in the bag body supply unit 2, a chuck cylinder 33 that opens and closes the chuck hand 32, a chuck hand 32 and a chuck cylinder 33. And a rotating rod 34. Rotating rod 34
Is connected by a pivoting structure to a rotating cylinder 35 whose base is pivotally supported by a frame 36 that constitutes the skeleton of the entire apparatus. As the rotating cylinder 35 expands and contracts, as shown in FIG.
Rotate within a range of degrees.

In the hand device 31, the rotating rod 34 is rotated to the vertical position based on the input of the detection signal of the front end portion of the bag body 7 from the front end detection sensor 27 described above. Then, the chuck cylinder 33 is actuated, the chuck hand 32 is closed, and the bag mouth of the bag body 7 is held. After that, the rotating rod 34 is rotated to the horizontal position so that the bag body 7 hangs down. Prior to this rotation to the horizontal position, the box body 8 is supplied immediately below the chuck hand 32,
By the horizontal rotation of the rotation rod 34, the bag body 7 is suspended with its lower portion inserted into the box body 8. And
Thereafter, the bag body 7 is transported on the transport path 1 while being suspended from the box body 8.

FIG. 6 and FIG. 7 show the construction of the filling section 4 for the contents and its peripheral portion. The filling section 4 is provided with a hopper 40 into which the contents are charged, and a shooter 4 which is attached to the lower end of the hopper 40 so as to be vertically movable and drops the contents into the bag body 7.
1 and. This hopper 40 and shooter 41
Constitutes a charging device for charging a predetermined amount of contents of 20 to 30 kg into the bag body 7. In FIG. 6, 39 is a shooter 4.
1 is a vertical movement cylinder for moving up and down, and by its operation, the shooter 41 enters the bag body 7 through the bag mouth.

An opening device 9 for opening the bag mouth of the bag body and a folding device 10 for making the bag body 7 into a gusset form are arranged below the charging device. The opening device 9 is a moving member 43 attached to a guide plate 42 supported by the frame 36 so as to extend along the transport path 1.
And a moving cylinder 44 for reciprocating the moving member 43. A pair of opening plates 45 approaching and separating from each other are attached to the moving member 43 so as to face each other. In addition, suction portions 46 for sucking the bag mouth of the bag body 7 by vacuum suction are provided at both lateral ends of the opening plate 45.
And a chuck claw 47 for gripping the bag mouth of the bag body 7 sucked by the suction portion 46. One aperture plate 4
5 is arranged so as to correspond to both ends of the bag mouth of the bag body 7, and the chuck claws 47 are arranged so as to face the suction part 46, whereby a set of suction parts 46 is provided. Also, the chuck claws 47 face each end of the bag mouth of the bag body 7. In FIG. 7, reference numeral 48 is a gripping cylinder for bringing the chuck claw 47 into contact with the opening plate 45 for gripping the bag mouth of the bag.

On the other hand, as shown in FIG. 6, the folding device 10 is provided with a pair of folding rods 70 arranged on both sides of the chute 41 of the throwing device, and a vertically moving member 71 for vertically moving the folding rod 70. There is. The vertical moving member 70 is provided with a rotating bracket 72 to which the upper end of the folding rod 70 is attached and which rotates 180 degrees. The folding rod 70 is attached to the rotating bracket 72 in a state where the upper portion is bent, and the rotation of the rotating bracket 72 changes from the separated state shown by the chain line to the approaching state shown by the solid line. A fold is formed on a pair of both side surfaces.

In FIG. 6, reference numeral 75 is a vibrating device arranged so as to be located right below the shooter 41, and is a vibrating plate 76 on which the box body 8 is placed and which can be moved up and down, and this vibrating plate 76.
And a cylinder 77 for moving up and down. The lower part of the diaphragm 76 is connected to the vibrating body 78. The vibrating body 78 operates when the contents are loaded from the shooter 41 into the bag body, and vibrates the vibrating plate 76. As a result, the box body 8 and the bag body 7 vibrate, so that crosslinking of the contents filled in the bag body 7 can be prevented.

Next, the operation of the opening device 9 and the folding device 10 will be described. With the chuck hand 32 of the hand device 31 holding the bag mouth of the bag body 7, the moving member 4
3 moves to between the bags 7. Then, the opening plate 45 approaches the bag mouth of the bag body 7 from both sides, and the suction portion 46 causes the bag body 7 to move.
Adsorb the bag mouth of. At the same time, the gripping cylinder 48
The chuck claws 47 come into contact with the opening plate 45 and hold the four corners of the bag mouth of the bag body 7 with the opening plate 45. Then, the opening plates 45 move away from each other to open the bag mouth of the bag body 7.

The moving member 43 moves to the filling section 4 together with the box body 8 while holding the opened bag body 7. When the box body 8 moves to the diaphragm 76 below the filling section 4, the diaphragm 7
6 rises. The folding rod 70 descends from the chain line position in FIG. 6 to the solid line position in conjunction with the rise of the vibrating plate 76, and the rotating bracket 72 rotates so that the folding rods 70 approach each other.

FIG. 8 shows such a state, and the bag body 7 is opened by being held by the chuck claws 47 and the opening plate 40 at the four corners of the bag mouth. On the other hand, the folding rod 70 is in contact with the opposite side surface of the bag body 7 from the outside to form the folding on the side surface. With respect to the bag body 7 in this state, the shooter 41 descends and enters the bag mouth, and while vibrating the vibrating plate 76, a predetermined amount of content is loaded. Such an opening device 9
In addition, since the folding device 10 can form a gusset bag whose side surfaces are folded as the contents are loaded, the gusset bag can be molded quickly and reliably.

FIG. 9, FIG. 10 and FIG. 11 show a chamber device 50 arranged in the chamber section 5. As shown in FIG. 1, the chamber device 50 is disposed on both sides of the transport path 1 and operates alternately to evacuate the air inside the bag body 7. As shown in FIG. 9, each chamber device 50 includes a box 51 having an empty interior, and a lid 52 that moves back and forth with respect to the box 51. The lid 52 is configured to move along the transport path 1, whereby the bag body 7 filled with the contents is received from the opening plate 45 and transported to a position facing the box 51.

The lid body 52 is positioned above the clip 53, an angle arm 54 extending in the direction of the box 51, a pair of clips 53 attached to the angle arm 54 via a T-shaped bracket arm 55. It is provided with a sealing device 56 provided and a gas nozzle 57 for injecting an inert gas such as nitrogen gas. The clip 53 holds the bag mouth portion of the bag body 7 held by the opening plate 45 from both sides. Sealing device 5
6 runs along a guide member 58 (see FIG. 10) provided on the lid 52 to seal the bag mouth of the bag 7.

In the chamber device 50, the lid 52 moves to the filling part 4 and the opening plate 45 of the opening device 9 moves from the bag 7 to the bag 7.
To receive. This reception is performed by the clip 53 holding the bag mouth of the bag body 7. Then, the lid body 52 moves to a position facing the box 51 to convey the bag body 7. When carrying the bag body 7, the box body 8 also moves along the carrying path 1. After that, the lid body 52 enters the box 51 until it abuts, thereby transferring the box body 8 and the bag body 7 into the box 51, as shown in FIG. The chamber device 50 is hermetically closed by the butting of the lid body 52, and the internal air is removed in this state. After this air bleeding, an inert gas is blown into the bag body 7 from the gas nozzle 57, and then the air bleeding is performed again. After that, the gas nozzle 57 comes out of the bag body 7, and the sealing device 56 runs to seal the bag mouth. As a result, the inside of the bag body 7 is replaced with an inert gas, and the bag body 7 is brought into a vacuum state to prevent the contents from being oxidized and released. Then, air is introduced into the chamber device 50, and the lid body 52 is withdrawn, whereby the bag body 7 and the box body 8 are taken out. After that, the bag body 7 and the box body 8 are carried out to the carry-out path 6.

In FIG. 1, reference numeral 61 is a pulling cylinder having a suction pad 62 which comes into contact with the side surface of the box body 8 and sucks the box body 8, and 63 is an pushing cylinder which sends the box body 8 to the carry-out path 6. . The bag body 7 is sent out to the carry-out path 6 together with the box body 8 by these cylinders 61 and 63, and thereafter,
Packing is completed by folding the flap (not shown) on the top of the box body 8 and storing the bag body 7.

In the above-described embodiment, since taking out the bag body, opening the bag mouth of the bag body, filling the contents, venting the air inside the bag body and closing the bag mouth are automatically performed, no operator is required, Labor saving can be achieved. Further, after taking out the bag body, the bag body is conveyed together with the box body and the above-mentioned processing is performed. Therefore, the work of accommodating it in the box becomes unnecessary.

[0025]

According to the present invention, the pickup device takes out the bag body, the hand device inserts the bag body into the box body, the opening device opens the bag mouth, and the charging device fills a predetermined amount of contents.
The chamber device evacuates the air inside the bag, and the sealing device closes the bag mouth. Therefore, it is possible to automate all of these processes for a large bag, save labor, and automate the accommodation of the bag in the box.

[Brief description of drawings]

FIG. 1 is a schematic plan view of an embodiment of the present invention.

FIG. 2 is an overall front view of one embodiment.

FIG. 3 is a front view of a pickup device.

FIG. 4 is a side view of a pickup device.

FIG. 5 is a side view of the hand device.

FIG. 6 is a side view of a charging device and a folding device.

FIG. 7 is a side view of the opening device.

FIG. 8 is a perspective view showing an operation of the folding device.

FIG. 9 is a side view of the chamber device.

FIG. 10 is a front view of a lid of the chamber device.

FIG. 11 is a side view of the chamber device during operation.

[Explanation of symbols]

 1 Transport Path 2 Bag Supply Section 3 Box Supply Section 4 Filling Section 5 Chamber Section 6 Carry Out Path 7 Bag Body 8 Box Body 9 Opening Device 10 Folding Device 21 Pickup Device 27 Tip Detection Sensor 31 Hand Device 50 Chamber Device 56 Sealing device

Claims (2)

[Claims] 1. A pick-out device for adsorbing and taking out the large-sized bags stacked in a folded state one by one, and rotating with the bag mouth portion of the bags taken out by the pick-out device being clamped. Hand device that inserts the lower part of the bag into the box and the bag mouth part of the bag body that this hand device holds from both sides to grasp the bag mouth part. An opening device for opening the mouth, a loading device for loading a predetermined amount of contents into the opened bag body, and a bag body with the contents loaded therein together with the box body in a closed space to release air in the closed space. A device for filling a large bag, comprising: a chamber device for carrying out the above; and a sealing device provided inside the chamber device for closing the bag mouth of the bag body. 2. A tip sensor for detecting the tip of the bag body is provided in a take-out path of the pickup device, and the hand device holds the bag body by a detection signal of the tip sensor. Item 1. A device for filling a large bag according to item 1.